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dbwrapper: Move HandleError to dbwrapper_private

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HandleError is implementation-specific.
This commit is contained in:
Wladimir J. van der Laan 2016-04-20 11:48:57 +02:00
parent b69836d6ff
commit 869cf1234a
2 changed files with 23 additions and 21 deletions
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34
src/dbwrapper.cpp
View file

@ -15,20 +15,6 @@
#include <memenv.h>
#include <stdint.h>
void HandleError(const leveldb::Status& status)
{
if (status.ok())
return;
LogPrintf("%s\n", status.ToString());
if (status.IsCorruption())
throw dbwrapper_error("Database corrupted");
if (status.IsIOError())
throw dbwrapper_error("Database I/O error");
if (status.IsNotFound())
throw dbwrapper_error("Database entry missing");
throw dbwrapper_error("Unknown database error");
}
static leveldb::Options GetOptions(size_t nCacheSize)
{
leveldb::Options options;
@ -61,13 +47,13 @@ CDBWrapper::CDBWrapper(const boost::filesystem::path& path, size_t nCacheSize, b
if (fWipe) {
LogPrintf("Wiping LevelDB in %s\n", path.string());
leveldb::Status result = leveldb::DestroyDB(path.string(), options);
HandleError(result);
dbwrapper_private::HandleError(result);
}
TryCreateDirectory(path);
LogPrintf("Opening LevelDB in %s\n", path.string());
}
leveldb::Status status = leveldb::DB::Open(options, path.string(), &pdb);
HandleError(status);
dbwrapper_private::HandleError(status);
LogPrintf("Opened LevelDB successfully\n");
// The base-case obfuscation key, which is a noop.
@ -105,7 +91,7 @@ CDBWrapper::~CDBWrapper()
bool CDBWrapper::WriteBatch(CDBBatch& batch, bool fSync)
{
leveldb::Status status = pdb->Write(fSync ? syncoptions : writeoptions, &batch.batch);
HandleError(status);
dbwrapper_private::HandleError(status);
return true;
}
@ -143,6 +129,20 @@ void CDBIterator::Next() { piter->Next(); }
namespace dbwrapper_private {
void HandleError(const leveldb::Status& status)
{
if (status.ok())
return;
LogPrintf("%s\n", status.ToString());
if (status.IsCorruption())
throw dbwrapper_error("Database corrupted");
if (status.IsIOError())
throw dbwrapper_error("Database I/O error");
if (status.IsNotFound())
throw dbwrapper_error("Database entry missing");
throw dbwrapper_error("Unknown database error");
}
const std::vector<unsigned char>& GetObfuscateKey(const CDBWrapper &w)
{
return w.obfuscate_key;

10
src/dbwrapper.h
View file

@ -23,14 +23,16 @@ public:
dbwrapper_error(const std::string& msg) : std::runtime_error(msg) {}
};
void HandleError(const leveldb::Status& status);
class CDBWrapper;
/** These should be considered an implementation detail of the specific database.
*/
namespace dbwrapper_private {
/** Handle database error by throwing dbwrapper_error exception.
*/
void HandleError(const leveldb::Status& status);
/** Work around circular dependency, as well as for testing in dbwrapper_tests.
* Database obfuscation should be considered an implementation detail of the
* specific database.
@ -208,7 +210,7 @@ public:
if (status.IsNotFound())
return false;
LogPrintf("LevelDB read failure: %s\n", status.ToString());
HandleError(status);
dbwrapper_private::HandleError(status);
}
try {
CDataStream ssValue(strValue.data(), strValue.data() + strValue.size(), SER_DISK, CLIENT_VERSION);
@ -242,7 +244,7 @@ public:
if (status.IsNotFound())
return false;
LogPrintf("LevelDB read failure: %s\n", status.ToString());
HandleError(status);
dbwrapper_private::HandleError(status);
}
return true;
}